Receptacle and closure therefor



May 19, 1925- 1,538,848

J. L. DUNNOCK RECEPTACLE AND CLOSURE THEREFOR Filed June 6. 1924Patented May 19, 1925.

UNITED STATES PATENT OFFICE.

JOHN L. DUNNOCK, OF BALTIMORE, MARYLAND, ASSIGNORIOFONEHALF TO HARRY O.BRAWNER, OF BALTIMORE, MARYLAND.

RECEPTACLE AND CLOSURE THEREFOR.

Application filed June 6,

To all whom it may concern:

Be it known that I, JOHN L. DUNNooK, a citizen of the United States,residing at Baltimore city, State of Maryland, have invented certain newand useful Improvements in Receptacles and Closures Therefor, of whichthe following is a specification.

This invention relates to receptacles and closures therefor and hasspecial reference to an interrupted screw' cap closure for cntainerssuch as bottles and the like. I

The principal objects of the present invention are to provide animproved construction of closures of this type wherein a novelform ofinterrupted screw is provided on a bottle, the screw being engageable bylugs on a cap and the bottle having special seats provided thereinwhereby to prevent accidental unscrewing and consequent disengagement ofthe cap from the bottle with resultant spilling or loss of the contents.

\Vith the above and other objects in view as will be hereinafterapparent, the invention consists in general of certain novel details ofconstruction and combinations of parts hereinafter fully described,illustrated in the accompanying drawings and specifically claimed.

In the accompanying drawings like characters of reference indicate likeparts in the several views. and:

Figure 1 is a side elevation of the upper part of a bott e constructedin accordance with this invention.

Figure 2 is a vertical median section therethrough.

Figure 3 is a View similar to Figure 1 with the .cap removed.

Figure 4 is a sectionon the line i -4 of Figure 1.

In the form of the invention herein shown there is illustrated a bottlehaving a neck with a circular base portion 11 and a gitudinally of theneck and a lateral porreduced upper or mouth portion 12. On

this upper portion is formed a series of spacedprojections each of whichconsists of a main or body portion 13 extending lontion 14 extendingfrom one side of the month end of the respective body portion 13circumferentially ofthe neck and terminating at- 16 in spaced .relationto the abruptly shouldered side 16 of the adjacent pro ection 13, theterminal endmerging by a gentle curve into the surface of the neck.

1924. Serial No. 718,216.

The under side of each circumferential portion 14 is curved as at 17 toform a cam surface. Thus the spaces between these pro jections serve toform a series of L-shaped grooves 18, one leg of the L being horizontaland the other vertical and at the inner end of each horizontal leg thereis formed a locking depression 19 extending'radially inward of the neck.Furthermore the outer edge of the bottle neck .at the mouth is mountedoil as at 20 for purposes which will'be presently understood.

The cap consists preferably of a top portion 21 from the periphery ofwhich depends a skirt 22 which. adjzfcent the top, is knurled as at 23.Below the knurled portion the skirt is contracted in diameter anddepressions are struck inwardly from its outer face to provide lugs 24of proper size, shape and position to pass into the L-shaped grooves 18and drop into the recesses 19. In order that these lugs may properlyengage in said recesses the lugs project inwardly of the cap to such anextent that a circle drawn within the cap tangent to the Moreover, thecap is made of this metal or' other resilient material so that the skirtmay distort slightly upon the cap being .pushed onto the neck over therounded off mouth.

Thus when the cap is pushed on and turned the lugs will spring into therecesses and hold the cap from accidental unscrewing. A packing disk ispreferably seated in the cap to prevent leakage from the bottle.

There has thus for the purpose specified. While the inbeen provided asimple and eflicient device of the kind described and vention is shownas applicable to a bottle, 1

it is to be understood that it is also applicable to any kind of acontainer regardless as to whether the container be made of glass, sheetmetal or that of any other material.

- Having thus described the invention, What is claimed as new. is:

1. The combination with a bottle cap hav ing a skirt provided withaseries of spaced lugs projecting inwardly of the skirt; of a bottlehaving a neck provided with a similar series of projections on its outerface,

each of said projections consisting of a portion extendinglongitudinally of the neck from the base of said neck to the mouth and alateral portion extending from one side of the first portioncircumferentially of the neck toward the adjacent projection andterminating in spaced relation to the adjacent project-ion whereby saidprojections form a series of substantially L-shaped grooves each havinga vertical leg opening at the mouth of the neck to receive a respectivelug and a horizontal leg into which said lug engages, thecircumferential portion of each projection having the side toward thebase of the neck curved to form a cap tightening cam; said groove beingsuddenly deepened at its inner end to provide a lug receiving recess atthe inner end of the horizontal leg of each groove and extendingreftdially of the neck into the material there- 0 2. The combinationwith a bottle cap having a skirt provided'with a series of spaced lugsprojecting inwardly of the skirt; of a bottle having a neck providedwith a similar series of projections on its outer face, each of saidprojections consisting of a portion extending longitudinally of the neckfrom the base of said neck to the mouth and a lateral portion extendingfrom one side of the first portion circumferentially of the neck towardthe adjacent projection and terminating in spaced relation to theadjacent projection whereby said projections form a series ofsubstantially L-shaped grooves each having a vertical leg opening at themouth of the neck to receive a respective lug and a horizontal leg intowhich said lug engages, the circumferential portion of each projectionhaving the side toward the base of the neck curved to form a captightening cam, said groove being suddenly deepened at its inner end toprovide a lug receiving recess at the inner end of the horizontal leg ofeach groove and extending radially of the neck into the materialthereof, the lug circle diameter of the cap being slightly less than thediameter of the neck at the bottoms of the grooves and the mouth end ofthe neck being rounded off to permit the cap to be readily pushed ontosaid neck whereby, upon positioning of the cap on the neck the lugs ofthe cap Will spring into said recesses.

In testimony whereof I affix my signature.

JOHN L. DUN NOCK.

